Method of vacuum drying film layer and display device
US11094919B2 · kind B2 · utility
Assignees
Inventor
Key dates
| Filing date | Mar 13, 2018 |
| Grant date | Aug 17, 2021 |
| Priority date | — |
| Expiry date | Jul 26, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K71/40
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The present disclosure provides a method of vacuum drying a film layer and a display device, the method includes: placing a substrate on which a film layer material is formed in a vacuum drying environment, wherein the film layer material contains a solvent and a solute for forming the film layer; in a first stage, evaporating and condensing the solvent in the film layer material on an upper cover plate, wherein the film layer material still contains an amount of solvent to form a soft film having fluidity; in a second stage, re-condensing a portion of the solvent condensed on the upper cover plate onto the substrate to increase the fluidity of the soft film on the substrate; and repeating the first stage and the second stage, vacuuming to completely evaporate the solvent and cure the film layer after forming a substantially flat film layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.